Bbjd exhaust manifold help April 20, 2017 03:26AM
I have a rear feed exhaust manifold but I'm always told about their being a better one out. Would of came stock on a 890 excavator. No one ever wants to tell me why it's better or better yet a part number on it! I run a 619 in a big big cube class just starting out. Could use some help, thanks for the site and anyone that helps
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Re: Bbjd exhaust manifold help April 20, 2017 06:26AM
The manifolds are the same as on a 8770 four wheel drive and some of the parts are the same as a 8630 with number brakes part number R120571 R120570
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Re: Bbjd exhaust manifold help April 21, 2017 08:45AM
I have one of those for sale
jdsuperfarm@aol.com
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Re: Bbjd exhaust manifold help August 28, 2017 07:45AM
Did you ever get one of these manifolds for your bbjd?

Is this the best thing out there for a 640 OEM manifold class or is there something better yet?

Anyone have a HP increase over a stock 8650 manifold?

What's the "have to have" intake manifold?
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